1 c. grated Swiss cheese
1/2 c. Parmesan cheese
1/2 c. green onion
1 tsp. Worcestershire sauce
1/4 tsp. salt
Bacon Bits (opt.)
1/2 c. mayonnaise
Small party rye bread

Mix all ingredients together. Spread on small rye bread slices. Bake at 350 degrees for about 10 minutes.